This random orbital sander is supplied with a 15cm (6") diameter rubber pad, to which an array of buffing and grinding pads can be attached. The palm action lever gives total speed control, and the rubber comfort grip helps minimise vibration. Specifications: Free speed: 10,000 RPM, Air consumption: 4 (25%) SCFM, Air pressure: 90 PSI, Air inlet: 1/4" / Side exhaust, Pad diameter: 15cm (6"), Length: 21cm (8.25").